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Santa Monica Partners LP

CIK:0000904793
Asset Manager
$183K AUM
13 holdings
Larchmont, NY, United States
Founded:1990
2 employees
Latest filing:Jun 30, 2025

Santa Monica Partners LP is an investment management firm based in Larchmont, NY, United States, specializing in asset management for institutional and high net worth clients. The firm is structured as a limited partnership and has a record of SEC filings dating back to the 1990s, suggesting operations started around that period. It primarily manages US securities portfolios and provides investment advisory services via SMP Asset Management. The firm maintains a small employee count, generally characteristic of boutique asset managers, and aims to deliver focused investment management services.

Investment Strategy

Santa Monica Partners LP focuses primarily on US equities, running a concentrated portfolio where over 97% of holdings are equities and the top ten holdings account for over 99% of the portfolio. The firm appears to utilize a long-term value approach, maintaining a small number of positions held for an average of nearly five years. Its strategy emphasizes high conviction and positions are held with relatively low turnover (under 2%), indicating a buy-and-hold philosophy. The portfolio is heavily weighted towards a select group of stocks, often associated with deep research and fundamental analysis in value investing.

Latest 13F Filing Activity

Santa Monica Partners LP filed their most recent 13F report on Jun 30, 2025 disclosing 10 equity positions with a total 13F market value of $172M. The fund increased holdings in Bel Fuse Inc. - Class B Common Stock, Mastercard Incorporated - Common Stock, Bel Fuse Inc. - Class A Common Stock among other positions. Santa Monica Partners LP reduced exposure to Balchem Corp. - Common Stock, Garmin LTD. - Common Stock, Berkshire Hathaway Inc. Common Stock among others.

Top Buys
B
BELFBBel Fuse Inc. - Class B Common Stock
+$1.5M
M
MAMastercard Incorporated - Common Stock
+$1.4M
B
BCPCBalchem Corp. - Common Stock
-$816.0K
B
BELFABel Fuse Inc. - Class A Common Stock
+$417.0K
G
GRMNGarmin Ltd. - Common Stock
-$343.0K
Top Sells
B
BELFBBel Fuse Inc. - Class B Common Stock
+$1.5M
M
MAMastercard Incorporated - Common Stock
+$1.4M
B
BCPCBalchem Corp. - Common Stock
-$816.0K
B
BELFABel Fuse Inc. - Class A Common Stock
+$417.0K
G
GRMNGarmin Ltd. - Common Stock
-$343.0K

Top Holdings

M
MAMastercard Incorporated - Common Stock
+33.5%$57.4M
B
BCPCBalchem Corp. - Common Stock
+11.1%$19.1M
B
BRBroadridge Financial Solutions, Inc. - Common Stock
+5.8%$9.9M
G
GRMNGarmin Ltd. - Common Stock
+5.0%$8.5M
B
BELFBBel Fuse Inc. - Class B Common Stock
+3.9%$6.6M

Equity Positions (10)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
M
MA
Mastercard Incorporated - Common Stock33.48%$57.4M102,170$151.36$561.94+$1.4M
B
BCPC
Balchem Corp. - Common Stock11.14%$19.1M120,014$80.60$159.20-$816.0K
B
BR
Broadridge Financial Solutions, Inc. - Common Stock5.78%$9.9M40,793$90.58$243.03+$23.0K
G
GRMN
Garmin Ltd. - Common Stock4.96%$8.5M40,755$64.07$208.72-$343.0K
B
BELFB
Bel Fuse Inc. - Class B Common Stock3.85%$6.6M67,634$25.18$97.69+$1.5M

Industry Allocation

SERVICES-BUSINESS SERVICES, NEC
+39.3%
CHEMICALS & ALLIED PRODUCTS
+11.1%
ELECTRONIC COILS, TRANSFORMERS & OTHER INDUCTORS
+5.1%
SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL SYS
+5.0%
FIRE, MARINE & CASUALTY INSURANCE
+1.7%